How To Fix TP Link Kasa Plug Dropping Connection Hourly?

You set up your TP Link Kasa smart plug, connect it to your WiFi, and everything works great for about an hour. Then it drops offline. You reset it, it reconnects, and an hour later the same thing happens again. This cycle repeats all day, every day, and it drives you up the wall.

The good news is that this issue almost always has a fixable cause. It could be a weak WiFi signal, a DHCP lease conflict, band steering interference, or outdated firmware. In most cases, you can solve it yourself without replacing any hardware.

This guide walks you through every known fix for the TP Link Kasa plug dropping connection hourly. Each solution is explained step by step so you can follow along even if you are not a tech expert. By the end of this post, your Kasa plug should stay connected and work the way it was designed to.

In a Nutshell

• Check your WiFi signal strength first. A signal weaker than minus 70 dBm causes frequent disconnections. You can check this directly in the Kasa app under Device Info. Move the plug or router closer together if the signal is poor.
• Assign a static IP address (DHCP reservation) to your Kasa plug. This is the single most effective fix reported by users. Many routers fail to renew the DHCP lease properly for Kasa devices, which causes them to drop off the network on a regular schedule, often every hour.
• Disable band steering and smart connect on your router. Kasa plugs only work on 2.4 GHz WiFi. Band steering can push them to the 5 GHz band, which they cannot use, causing repeated disconnections.
• Update the firmware on your Kasa plug and the Kasa app. Outdated firmware contains bugs that cause connection instability. TP Link releases patches specifically to address these problems.
• Reboot your router on a weekly schedule. Routers accumulate memory leaks and resource issues over time. A scheduled weekly reboot clears these problems and keeps your smart devices stable.
• Set your router’s 2.4 GHz channel to 1, 6, or 11 manually. Auto channel selection can place your network on an overlapping channel that creates interference and drops connections for low power devices like smart plugs.

Why Does Your TP Link Kasa Plug Keep Dropping Connection

The TP Link Kasa smart plug connects to your home WiFi on the 2.4 GHz band only. This band has a longer range than 5 GHz but is also more crowded with interference from microwaves, baby monitors, Bluetooth devices, and neighboring WiFi networks.

The hourly disconnection pattern is a major clue. In most cases, it points directly to a DHCP lease renewal failure. Your router assigns an IP address to each device on your network through DHCP. These addresses come with a lease timer. Many routers set the default lease time to 3600 seconds, which is exactly one hour.

When the lease expires, your Kasa plug needs to request a new one. Multiple users on the TP Link community and Reddit have confirmed that Kasa devices handle DHCP lease renewals poorly. The plug fails to get a new address and drops off the network entirely.

Other common causes include weak WiFi signal strength, channel congestion on the 2.4 GHz band, router features like band steering or smart connect that confuse the plug, and outdated firmware. Understanding the root cause helps you pick the right fix from the list below.

Check Your WiFi Signal Strength in the Kasa App

Before trying anything else, check whether your Kasa plug receives a strong enough WiFi signal. A weak signal is the most basic and most overlooked cause of repeated disconnections.

Open the Kasa app on your phone. Tap the device card for your smart plug to open its status page. Then tap the settings icon in the top right corner. Go to Device Info and look for the WiFi signal icon. This shows the RSSI value (Received Signal Strength Indicator) measured in dBm.

A reading stronger than minus 50 dBm means your signal is strong. A reading between minus 50 and minus 70 dBm is acceptable but could cause occasional issues. Anything weaker than minus 70 dBm is too weak and will cause frequent drops.

If your signal is poor, move the Kasa plug closer to your router. Alternatively, you can move the router to a more central location in your home. Avoid placing the Kasa plug behind large appliances, inside metal cabinets, or near microwaves. These objects block and degrade the 2.4 GHz signal significantly. Improving signal strength alone fixes this problem for many users.

Assign a Static IP Address to Your Kasa Plug

This is the fix that has helped the most users across Reddit and the TP Link community. When your router’s DHCP server fails to renew the IP lease properly, the Kasa plug loses its network identity and drops offline. Assigning a static IP address (also called a DHCP reservation) eliminates this problem entirely.

To set this up, you need to log into your router’s admin panel. This is usually done by typing 192.168.0.1 or 192.168.1.1 into your web browser. Enter your router’s admin username and password.

Look for a section called DHCP Reservations, Address Reservation, or Static IP Assignment. The exact name varies by router brand. Find your Kasa plug in the list of connected devices. It will usually show up with a name like “Kasa Smart Plug” or its model number such as HS103 or EP10.

Select the device and choose Reserve or Add Reservation. This tells your router to always assign the same IP address to your Kasa plug. The plug will never need to negotiate a new lease again.

One user on Reddit reported having 10 Kasa devices constantly going offline on a Synology router. After setting DHCP reservations for each one, the problem never returned. This fix directly addresses the hourly disconnect pattern because it removes the lease renewal process from the equation.

Disable Band Steering and Smart Connect on Your Router

Many modern routers combine the 2.4 GHz and 5 GHz networks under a single SSID using a feature called band steering or smart connect. This feature automatically pushes devices to the band the router considers best. The problem is that Kasa plugs only support 2.4 GHz.

When band steering is active, your router may try to push the Kasa plug to the 5 GHz band. The plug cannot connect to 5 GHz, so it disconnects. It then reconnects on 2.4 GHz, and the cycle repeats.

Log into your router’s admin panel and look for settings labeled Band Steering, Smart Connect, or Whole Home WiFi. Disable this feature. If your router combines both bands under one name, consider creating a separate 2.4 GHz only network with a different SSID name. Connect your Kasa plug to this dedicated 2.4 GHz network.

TP Link’s official support page specifically lists band steering as a known cause of Kasa device disconnections. Turning it off is one of their recommended troubleshooting steps. This simple change has fixed the hourly drop issue for a large number of users, especially those with newer mesh router systems like Eero, Google Nest WiFi, and Orbi.

Update Firmware on Your Kasa Plug

Outdated firmware on your Kasa plug can contain bugs that cause connection instability. TP Link regularly releases firmware updates that fix these exact issues. Keeping your plug updated is a critical step.

Open the Kasa app and go to your plug’s device settings page. Look for the Firmware Update option. If an update is available, the app will show a notification or a button to download and install it.

Make sure your plug stays powered on and connected during the update process. Do not unplug it until the update finishes completely. If the firmware update fails or gets stuck, try unplugging the Kasa plug from the wall outlet for 10 seconds and then plugging it back in. Several users report that this simple power cycle allows the firmware update to complete successfully on the next attempt.

Also update the Kasa app itself from the App Store or Google Play. An outdated app can cause communication issues between your phone, the cloud server, and the plug. After updating both the firmware and the app, monitor the plug for a few hours to see if the hourly disconnection stops.

Set Your Router’s 2.4 GHz Channel Manually

Most routers use automatic channel selection by default. This means the router picks what it considers the best WiFi channel on its own. The problem is that auto selection sometimes places your network on a channel that overlaps with neighboring networks, causing interference.

On the 2.4 GHz band, only channels 1, 6, and 11 are truly non overlapping. If your router sits on channel 3, 4, 8, or any other number, it creates co channel interference with networks on the standard channels. Low power devices like smart plugs are the first to suffer.

Download a WiFi analyzer app on your phone (such as WiFi Analyzer for Android). Walk around your home and check which channels are most crowded. Then log into your router’s admin panel and manually set the 2.4 GHz channel to whichever of 1, 6, or 11 has the least traffic.

Also set the channel width to 20 MHz instead of 40 MHz or auto. A 20 MHz channel width reduces overlap with neighboring networks. You will not notice any speed difference for smart home devices because they use very little bandwidth. This change creates a cleaner, more stable connection for your Kasa plug.

Increase Your Router’s DHCP Lease Time

If you cannot or prefer not to set a static IP, another effective approach is to increase the DHCP lease time on your router. The default is often 3600 seconds (one hour), which matches the hourly drop pattern perfectly.

Log into your router’s admin panel. Find the DHCP settings section. Look for a field labeled Lease Time or DHCP Lease Duration. Change this value to a longer period. A setting of 86400 seconds (24 hours) or even 604800 seconds (7 days) is safe for most home networks.

A longer lease time means your router will not ask the Kasa plug to renew its IP address as often. This reduces the chances of a renewal failure causing a disconnect. While this is not as permanent a fix as a static IP reservation, it can make the disconnections far less frequent.

Make sure your DHCP address pool is large enough to cover all your devices. If your pool runs from 192.168.1.100 to 192.168.1.200, that gives you 100 addresses. Most home networks need far fewer, but smart home setups with many devices can get close to the limit. Running low on available DHCP addresses is another cause of connection drops.

Create a Separate 2.4 GHz Guest Network for Smart Devices

Many experienced smart home users recommend putting all IoT devices on a dedicated 2.4 GHz guest network. This approach solves multiple problems at once. It isolates your smart plugs from the main network traffic and prevents band steering from affecting them.

Log into your router and enable the Guest Network feature. Give it a unique name such as “SmartHome24” so you can identify it easily. Make sure the guest network is set to 2.4 GHz only. Disable band steering on this network if your router allows per network settings.

Connect your Kasa plug to this new guest network. You will need to remove the plug from the Kasa app and add it again using the new network credentials. To do this, factory reset the plug by holding the reset button for 10 seconds until the LED blinks amber rapidly. Then set it up fresh in the Kasa app.

This setup gives your Kasa devices a clean, interference free connection path. Your phones, laptops, and streaming devices will stay on the main network and will not compete for bandwidth or cause channel switching. TP Link’s own support team recommends this approach for users experiencing persistent disconnection issues.

Reboot Your Router on a Weekly Schedule

Routers accumulate memory leaks and resource allocation problems over time. These issues affect low priority connections first, and smart plugs often fall into that category. A regular reboot clears these accumulated problems and gives every device a fresh start.

Most modern routers have a scheduled reboot option in their admin panel. Set it to restart automatically once per week during a time when you are unlikely to be using the internet, such as 3:00 AM on a Sunday. This keeps your router running cleanly without any manual effort.

If your router does not have a scheduled reboot feature, set a weekly reminder on your phone to manually restart it. Simply unplug the router from power, wait 30 seconds, and plug it back in. Let it fully boot up before checking your devices.

Users on the TP Link community forum report that a weekly router reboot significantly reduces the frequency of Kasa plug disconnections. One user described going from daily disconnections to zero issues after implementing weekly reboots along with DHCP reservations. These two fixes together cover the most common causes of the hourly drop problem.

Remove Devices Using the Old WiFi B Standard

The 802.11b WiFi standard is outdated and operates at very slow speeds. If any device on your network still uses the B standard, it can slow down the entire 2.4 GHz network for every other device. This happens because routers must accommodate the slowest device on the network.

Check your router’s admin panel for a list of connected devices and their connection speeds or protocols. If you see any device connecting at 1 Mbps or 11 Mbps, it is likely using the B standard. Consider replacing that device or disconnecting it from WiFi.

In your router settings, you may also find an option to set the wireless mode to G/N only or N only, which disables backward compatibility with the B standard. This forces all devices to use faster and more efficient protocols.

Removing B standard devices reduces overhead on your 2.4 GHz network. Your router can process connections faster, and devices like your Kasa plug get a more reliable channel to communicate. This is a small change that can make a noticeable difference in network stability for all your connected smart devices.

Perform a Factory Reset on Your Kasa Plug

If none of the router side fixes have worked, try resetting the Kasa plug itself. A factory reset clears any corrupted settings or connection data that may be causing the problem.

There are two types of reset. A soft reset keeps your settings but restarts the connection process. Press and hold the reset button for 5 seconds until the LED blinks amber and green. A factory reset erases everything and returns the plug to its original state. Press and hold the reset button for about 10 seconds until the LED blinks amber rapidly.

After a factory reset, you need to set up the plug again from scratch in the Kasa app. Remove the old device entry from the app first. Then add the plug as a new device. Connect it to your 2.4 GHz network (preferably the dedicated one you created earlier) and apply all the router settings discussed above.

During the setup process, make sure your phone is connected to the same 2.4 GHz network you want the plug to join. If your phone is on the 5 GHz band, the setup may fail or connect the plug incorrectly. Some users report that temporarily disabling 5 GHz on their router during setup produces a smoother initial connection.

Check for Too Many Devices on Your Network

Every router has a limit on how many devices it can handle simultaneously. Consumer grade routers typically support between 20 and 50 active connections. If you have a home full of smart devices, phones, tablets, laptops, streaming sticks, and gaming consoles, you may be hitting that limit.

When the router is overloaded, it starts dropping connections to make room. Smart plugs are often the first to go because they have the weakest radios and lowest priority.

Count all the devices connected to your network. Check your router’s admin panel for a full list of connected clients. If you are close to the limit, consider upgrading to a router that handles more simultaneous connections or offloading some devices to a separate access point.

You can also reduce the device count by disconnecting devices that do not need constant WiFi access. Old phones, tablets that sit in drawers, and guest devices all consume DHCP leases and router resources. A cleaner device list gives your Kasa plug more breathing room and reduces the chance of being dropped during peak usage.

Contact TP Link Support if the Problem Persists

If you have tried every fix in this guide and your Kasa plug still drops connection every hour, the issue may be a hardware defect or a specific incompatibility with your router model. At this point, contacting TP Link technical support is the best next step.

Before you reach out, gather the following information to speed up the process. Note the LED status on the plug when it goes offline. Record the MAC address of the device, which you can find in the Kasa app under Device Info. Write down your TP Link ID email address and the model number of your router.

Also note whether the plug responds locally when it shows as offline in the app. Connect your phone to the same 2.4 GHz WiFi network as the plug and try controlling it during a disconnect. If it works locally but not through the app, the issue is with the cloud connection rather than the WiFi link.

TP Link offers support through their website, community forums, and direct contact channels. They have access to diagnostic tools that can identify firmware bugs and router incompatibilities that are difficult to detect on your own. In some cases, they may provide a beta firmware or a replacement device if the plug is under warranty.

Frequently Asked Questions

Why does my Kasa plug disconnect at the same time every day?

A disconnect that happens at the same interval points to a DHCP lease renewal failure. Your router assigns temporary IP addresses that expire on a timer, often every hour. When the lease expires, the Kasa plug fails to renew it properly and loses connection. Assigning a static IP address or increasing the DHCP lease time in your router settings fixes this issue in most cases.

Can I use my Kasa plug on a 5 GHz WiFi network?

No. All TP Link Kasa smart plugs operate exclusively on the 2.4 GHz WiFi band. They cannot connect to 5 GHz networks. If your router combines both bands under one network name using band steering, the plug may struggle to stay connected. Creating a separate 2.4 GHz only network solves this compatibility issue.

How do I factory reset my TP Link Kasa smart plug?

Press and hold the reset button on the plug for 10 seconds until the LED light blinks amber rapidly. This erases all saved settings and returns the plug to factory defaults. You will need to remove it from the Kasa app and set it up again as a new device. For a soft reset that keeps your settings, hold the button for only 5 seconds.

Will a WiFi extender help my Kasa plug stay connected?

A WiFi extender can help if the root cause is a weak signal. Check your RSSI value in the Kasa app first. If it is weaker than minus 70 dBm, an extender placed between the router and the plug can boost the signal. However, if the problem is caused by DHCP issues, band steering, or channel congestion, an extender will not fix it.

How many Kasa smart plugs can my router support?

This depends on your specific router model. Most consumer routers support 20 to 50 simultaneous WiFi connections. Each Kasa plug takes one connection slot. If you have many smart home devices, phones, and computers, you may approach the limit. Check your router’s specifications and the connected devices list in the admin panel to make sure you have capacity.

Does updating the Kasa app fix connection drops?

Updating the Kasa app can fix issues related to how the app communicates with the plug and TP Link’s cloud servers. It will not directly fix WiFi disconnections caused by router settings or signal problems. However, keeping both the app and the plug firmware updated ensures you have the latest bug fixes and stability improvements, which contribute to overall reliability.